[v1] bpf, riscv: add timed may_goto support

[PATCH 0/2] bpf, riscv: add timed may_goto support

Feng Jiang posted 2 patches 1 week, 4 days ago

Diff against v2 v3 v4 v5
Download series mbox

There is a newer version of this series

arch/riscv/net/Makefile                            |  2 +-
arch/riscv/net/bpf_jit_comp64.c                    |  5 +++
arch/riscv/net/bpf_timed_may_goto.S                | 44 ++++++++++++++++++++++
tools/testing/selftests/bpf/progs/stream.c         |  1 +
.../selftests/bpf/progs/verifier_may_goto_1.c      |  4 ++
5 files changed, 55 insertions(+), 1 deletion(-)

Expand all Fold all

[PATCH 0/2] bpf, riscv: add timed may_goto support

Posted by Feng Jiang 1 week, 4 days ago

This series adds RISC-V JIT support for the timed may_goto loop bound.

Patch 1 implements arch_bpf_timed_may_goto() and enables
bpf_jit_supports_timed_may_goto() so the verifier uses the timed
expansion path.

Patch 2 enables verifier_may_goto_1 and stream_cond_break on riscv64.

Tested on riscv64 QEMU (rva23s64): may_goto programs load and JIT
correctly, and the 250ms timeout path works as expected.

Signed-off-by: Feng Jiang <jiangfeng@kylinos.cn>
---
Feng Jiang (2):
      bpf, riscv: add support for timed may_goto
      selftests/bpf: enable timed may_goto tests for riscv64

 arch/riscv/net/Makefile                            |  2 +-
 arch/riscv/net/bpf_jit_comp64.c                    |  5 +++
 arch/riscv/net/bpf_timed_may_goto.S                | 44 ++++++++++++++++++++++
 tools/testing/selftests/bpf/progs/stream.c         |  1 +
 .../selftests/bpf/progs/verifier_may_goto_1.c      |  4 ++
 5 files changed, 55 insertions(+), 1 deletion(-)
---
base-commit: dc59e4fea9d83f03bad6bddf3fa2e52491777482
change-id: 20260710-riscv-bpf-timed-may-goto-0dce564985af

Best regards,
-- 
Feng Jiang <jiangfeng@kylinos.cn>